BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 232 57.7%
2 United States 97 24.1%
3 Germany 25 6.2%
4 Canada 21 5.2%
5 Ireland 7 1.7%
6 Hong Kong 4 1%
7 Taiwan 4 1%
8 Singapore 3 0.7%
9 United Kingdom 2 0.5%
10 Australia 2 0.5%
11 Belgium 2 0.5%
12 Brazil 1 0.2%
13 Bulgaria 1 0.2%
14 Luxembourg 1 0.2%